173930784289 has 2 divisors, whose sum is σ = 173930784290. Its totient is φ = 173930784288.

The previous prime is 173930784277. The next prime is 173930784367. The reversal of 173930784289 is 982487039371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160144032400 + 13786751889 = 400180^2 + 117417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173930784289 is a prime.

It is not a weakly prime, because it can be changed into another prime (173930784239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86965392144 + 86965392145.

It is an arithmetic number, because the mean of its divisors is an integer number (86965392145).

Almost surely, 2^173930784289 is an apocalyptic number.

It is an amenable number.

173930784289 is a deficient number, since it is larger than the sum of its proper divisors (1).

173930784289 is an equidigital number, since it uses as much as digits as its factorization.

173930784289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 173930784289 in words is "one hundred seventy-three billion, nine hundred thirty million, seven hundred eighty-four thousand, two hundred eighty-nine".